the best prices for things like that are usually online. if you don't want to go that route, check the Santa Monica Co-op and Rainbow Acres. they both carry it, but i have no idea what their prices are.

I usually buy coconut flour online where I can find it for $4-5 per lb., sometimes free shipping. I have purchased it at SM Co-op in a pinch, but sorry to report I cannot recall the cost. A quick phone call would give you an answer. :-)